From Sokoban Wiki

Summary of the Grigr2002 level set

Each solver is tested separately to ensure that they don't compete for system resources.

Though some people might be interested in how long it takes to solve a given level and/or how good the solution is (optimal or not),
this summary disregards all timing associated with solving the levels and solution statistics.

These tests are mainly for gauging solvability, not timing nor how good the solution is.

All solvers combined solved 40 of 40 levels.

Solver Statistics      Set: Grigr2002
Level No.	BoxSearch	Takaken	YASS	JSoko	Sokolution	Solved by only one	Solved by all	Solved by none
1							yes
2							yes
3							yes
4							yes
5							yes
6							yes
7							yes
8							yes
9							yes
10
11							yes
12							yes
13							yes
14							yes
15							yes
16							yes
17							yes
18							yes
19							yes
20							yes
Level No.	BoxSearch	Takaken	YASS	JSoko	Sokolution	Solved by only one	Solved by all	Solved by none
21							yes
22
23							yes
24							yes
25							yes
26							yes
27						yes
28							yes
29
30							yes
31
32							yes
33							yes
34							yes
35							yes
36							yes
37							yes
38							yes
39							yes
40
Total	37	37	38	34	40	1	34	0